NF V18-100

NF V18-100

October 1977
Standard Cancelled

Animal feeding stuffs.determination of nitrogen for the calcultion of crude protein content.

Main informations

Collections

National standards and national normative documents

Publication date

October 1977

Number of pages

5 p.

Reference

NF V18-100

ICS Codes

65.120   Animal feeding stuffs

Classification index

V18-100

Print number

1 - 01/10/1977

International kinship

ISO 5983:1979
Standard replaced by (2)
NF EN ISO 5983-1
December 2005
Standard Current
Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1 : Kjeldahl method

ISO 5983-1:2005 specifies a method for the determination of the nitrogen content of animal feeding stuffs by the Kjeldahl process, and a method for the calculation of the crude protein content. The method does not measure oxidized forms of nitrogen or heterocyclic nitrogen compounds. This method does not distinguish between protein nitrogen and non-protein nitrogen. If it is important to determine the content of non-protein nitrogen, an appropriate method should be used.

NF EN ISO 5983-2
December 2005
Standard Cancelled
Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 2 : block digestion/steam distillation method

Le présent document spécifie une méthode de routine semi-micro rapide détermination de la teneur en azote des aliments pour animaux selon la méthode de Kjeldahl et une méthode de calcul de la teneur en protéine brute. Cette méthode est utilisable pour des teneurs en azote supérieure à 0,5 %.

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